ethernet oam role in broadband and mobile

© 2009 IP Infusion Inc. All rights reserved.

ETHERNET OAM role in Broadband and Mobile BackhaulBBWF – 2010, Oct 25st – 28th

By Asif Hazarika at Booth E10Email: [email protected]


Topics to be discussed

Market Carrier Ethernet Mobile and Broadband Backhaul ? Ethernet OAM Ethernet OAM in BH Conclusions


Worldwide User Growth

Total world population 2009: 6,789,627,419 Internet users in 2000: 360,985,492 Internet users in 2009: 1,663,770,408 Penetration worldwide: 24.5% 2000-2009 growth: 360.9% Exploding bandwidth needs, driven by mobile-wireless

and broadband services

What about revenue?

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• Source: Internetworldstats.com


What is happening?

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GROWTH DRIVERS

Global IPTV subscription65 million by 201252% growthFrom 1.3M households (2008) worldwide Internet usage will grow two folds every year!

Mobile BBBase Stations:IDC predicts over 3 M base stations (24.3%)Cell Sites1.8 Mcell sites (10.7%) by 2012


2010-Q2 Telecom Equipment – by Segment

6.1%

27%

73%


IP/MPLS

Broadband Backhaul evolution – all IP

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Metro Network

FTTX

DSLWeb-

servers

CARRIER ETHERNETEDGE NODES

Provider Network

ETHERNET

POP• CFM• PBB, PB• PBB-TE• OAM• MPLS-TP• Layer 3 IPv4, IPv6• Resiliency• High Availability

ACCESS NETWORK

ISP

VDSL

MPLS/Ethernet MOVING TOWARDS ACCESS

EDGE NODES


LTE requirements

Long Term Evolution / WiMAX / 3GPP· Packet Based / all-IP

RAN· Quality of Service· Carrier Ethernet OAM· Synchronization

· Imperatives· Resiliency· Low cost per bit· Security· Bandwidth

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Mobile Backhaul Evolution

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CoreNet--work

RNC

BSC

3G

4G

LTE

TDM

Ethernet

ATM

Ethernet

RNC

ETHERNET or IP/MPLSNETWORK

MPLS /CARRIER ETHERNET MOVING TOWARDS ACCESS

EDGE NODES

EDGE NODES EDGE NODES

Mobile AggregationSite Gateway

Ethernet

TDM-Tunnel

ATM -TunnelBTS

Node B

Node B

enode B

AggregationNetworks

Microwave,DSL,

GPONEthernet

Fiber

MOBILE BACKHAUL NETWORK

Base Station Tranciever

MME

Access Network

MGW

SSGN

UNI

MEF Service OAMCFM/ 802.1ag

EDGE NODES

2G

MTSO• CFM• PBB, PB• PBB-TE• OAM• MPLS-TP• Layer 3 IPv4, IPv6• Resiliency• High Availability


Drivers and Challenges for Carrier Ethernet

Cost and Simplicity· Packet based connection oriented service· Features like OAM and QOS required · It will reduce their OPEX and CAPEX

· Simplified equipment· Simplified provisioning· Simplified protection

Challenges · Provisioning and end-to-end network management· Connection Orientation· Supporting carriers’ 99.999% or 99.9999% uptime requirements

by providing high-availability features · Fault management· 50 ms recovery

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OAM

Attributes of SONET - OAM· Fault Monitoring/Detection

· Alarms· Service Restoration/APS (50ms)· Fault location and repair· FCAPS (Fault, Configuration, Accounting, Performance, Security)

Attributes of E-OAM as a goal to match SONET· Performance Monitoring· Fault Detection > Failures > SLA, Link Failure, Transport· Protection (ERPS or ELPS) · Fault Notification, Verification· Fault Isolation· Repair, Repair Verification

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© 2009 IP Infusion Inc. All rights reserved. 11

OAM model

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Carrier Ethernet OAM· End-to-end and per carrier monitoring

MEP (Maintenance End-points) define the OAM segment, each is independent Recovery is between OAM end-points MIP (Maintenance Intermediate Points)

MEP

MEP MEP

MEPMEP MEP

MIP MIP MIP

MIPMIPMIPMIP

OAM SegmentOAM

SegmentOAM Segment

E2E OAM


Ethernet OAM types

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LINK OAM

TUNNEL OAMSERVICE OAM

UNI/AN

UNI/AN

UNI/AN

MSC

ETHERNET OAM LAYERS


All-IP RAN

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Aggregation RIng

TO Metro RingMobile OperatorNWk

Aggregation RIngBase Stations

G8032

EFM, LACP

Radio Access Network

CFM, LACpCFM

CCM Messages,

CCM Messages,Loopback TestDelay measurements

MOBILE BACKHAUL

E-LAN/E-LINE SERVICE


What is required?

Fault Management · ITU-T Y.1731 OAM Functions and Mechanisms for Ethernets· IEEE 802.1ag Connectivity Fault Management (CFM)

Ethernet Protection - Linear and Ring· Linear/Ring Protection - ITU-T 8031/8032· Link Aggregation, Spanning Tree

EFM· IEEE 802.3ah Ethernet to the First Mile (EFM)

Otherso IEEE 802.1ah Provider Backbone Bridging (PBB)o IEEE 802.1Qay Provider Backbone Bridging – Traffic Engineering

(PBB-TE)o Newer upcoming Standards

o 802.1Qbf – PBB-TE Infra. Segment Protection

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Y1731

OAM PDUs Encapsulation of PDUs in Ethernet Applications

· PBB/Ethernet OAM · MPLS-TP OAM

· CCV· Continuity Check· Remote defect indication· Packet loss measurement

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802.1ag (CFM) / 802.3ah (EFM)

802.1ag area of interest· Path discovery - Linktrace· Fault detection – Continuity Checks + verify unintended

connections (CCMs- multicasted)· Fault verification and isolation - Loopback checks (LBMs –

unicast)· Fault notification – administrative message based on CCMs· Fault recovery - STP, LACP· Performance Measurement – Y.1731

802.3ah area of interest in EOAM· Remote Failure Indication· Remote Loopback· Link Monitoring

· Fault detection· Fault notification

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MEF Carrier Ethernet

MEF 2· Service Protection

MEF 11· UNI

MEF 13· UNI Type 1 implementation

MEF 16· E-LMI

MEF 17· Service OAM Framework and

Requirements

MEF 20 · UNI Type 2 implementation

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CarrierEthernet

Customer Edge

ProviderEdgeUNI

DemarcationDevice


Back Haul Aggregation

Network CarrierEthernet

Base StationCarrier

Ethernet

Carrier Ethernet

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Aggregation Network Carrier

EthernetCustomer Edge

Core Network Carrier

Ethernet

Service Provider Network

Customer Edge

Broadband

Access Network Carrier

EthernetMTUs

802.1ahProvider BackboneBridging, 802.1ag CFM

802.1adProvider BridgingMobile

802.1ahProvider BackboneBridging

802.1ag CFM

802.1adProvider Bridging802.3ah EFM G.8031, G.8032

E-LAN Services

MEF

ProviderEdge

Challenges : Configuring and ProvisioningTiming SynchronizationService – Integrated Solution for management

E_LINE/E-TREE SVCS


What does IP Infusion fit into the picture?

IP infusion is a provider of embedded communication software solutions for Next Generation Networks equipment.

Protocol stacks for Next Generation Technologies - Carrier Ethernet, Virtual Private Services, Multicast and also MPLS, GMPLS, BFD, VCCV, PW, MS-PW, and High Availability

Implements well tested Carrier Ethernet stacks including OAM

Offer Integrated solution CE with Management with Tail-f· Fast time to deployment· MEF and GMPLS functionality available

ASSURED! Quality through extensive testing through its 3 world-wide labs in USA, China and India


Summary

Bandwidth demand, costs, required bandwidth granularities for services, provisioning and OAM are driving providers to upgrade their networks to NGNs

Wireless backhaul networks will get the much needed upgrade. Carrier Ethernet is essential to the transformation to Next Generation Networks

Reliability, interoperability and testing - Cost, resource and Time challenge· Can be reduced by sharing through IOT and certification facility

NGNs - MPLS and Carrier will co-exist deriving from each other’s strengths in the Access and the Core

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Thank You !

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Requirements of an Ethernet based backhaul network differ from Carrier ethernet networks?

Ethernet based Backhaul Networks have the same characteristics as Carrier Ethernet networks except the additional requirements to handle QOS and Synchronization

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Carrier Ethernet

o IEEE 802.1ad Provider Bridgingo IEEE 802.1ab Link Layer Discovery Protocol (LLDP)o IEEE 802.1ak Multiple Registration Protocol (MRP)o IEEE 802.3ah Ethernet to the First Mile (EFM)o IEEE 802.1ag Connectivity Fault Management (CFM)o ITU-T Y.1731 OAM Functions and Mechanisms for Ethernetso IEEE 802.1ah Provider Backbone Bridging (PBB)o IEEE 802.1Qay Provider Backbone Bridging – Traffic Engineering

(PBB-TE)o Linear/Ring Protection - ITU-T 8031/8032o IEEE P802.1AE MAC-SECo IEEE 1588v2 , Sync-E , 802.1ASo In Draft

o 802.1Qbf – PBB-TE Infra. Segment Protectiono 802.1Qbc – Provider Bridging – Remote Customer Interfaces


Carrier Grade, Connection Oriented Ethernet

Carrier Grade efforts· High Availability and OAM

· Ethernet OAM· 802.1ag Connectivity Fault Management· 802.Qaw Management of Data Driven and Data Dependent Faults· ITU Y.1731 OAM Functions and Mechanisms for Ethernets· 802.1Qbf – PBB-TE Segment protection

· Ethernet linear and ring protection mechanisms (ITU-T 8031/8032)· Providing the same 99.9999% reliability as legacy networks

· Time synchronization· Synchronous Ethernet

· ITU-8261/8262· IEEE 1588

· Provider Bridging · 802.1ad - Provider Bridging· 802.1ah– Provider backbone bridging· 802.1Qay – PBB-TE

· Inter-op and Certification

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Replacement SDH and TDM

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Function CO Ethernet Sonet SDH

Fault Management:Tunnel Layer

Service (EVC) LayerLink (physical ) Layer

ITU-T Y.1731 / IEEE 802.1agITU-T Y.1731 / IEEE 802.1ag

IEEE 802.3ah

STS Path / VCGVT1.5 or STS Path

SONET Line

Link and Path Protection

1:1 Link Agg (802.3ad)G.8031/G.8032

1 + 1 Resiliency

ethernet oam role in broadband and mobile

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